Tribhuvan University (Amrit Campus)
Question
Asked 29th Nov, 2023
How does the synthesized composite materials' morphology affect the orientation (positive or negative nature) of the materials?
In my literature review, I am investigating the impact of the morphology of synthesized materials on the orientation of the materials. However, I have been unable to find a clear reason and explanation for this relationship. Therefore, I would appreciate your help in shedding light on this topic. Thank you for your help.
Most recent answer
Thank You so much Pranjit Sarkar . Its really helpful.
Popular answers (1)
Kaziranga University
The morphology of synthesized materials refers to the shape, size, and structure of the nanoscale or microscale particles or crystals that make up the material. The orientation of the material refers to the alignment or arrangement of the particles or crystals along a certain direction or plane. The morphology and orientation of the material can affect its physical, chemical, optical, and electrical properties, such as surface area, porosity, stability, reactivity, conductivity, and band gap.
The relationship between the morphology and orientation of the material is complex and depends on various factors, such as the synthesis method, the precursor materials, the temperature, the pressure, the solvent, the additives, the catalysts, and the post-synthesis treatments. These factors can influence the nucleation, growth, and aggregation of the particles or crystals, as well as their interaction with the substrate or the surrounding environment. Different synthesis methods, such as chemical vapor deposition, sol-gel, hydrothermal, and microwave, can produce different morphologies and orientations of the material, such as nanowires, nanotubes, nanosheets, nanoflowers, and nanospheres.
To understand the impact of the morphology of synthesized materials on the orientation of the materials, you need to study the mechanisms and kinetics of the synthesis process, as well as the characterization techniques that can reveal the morphology and orientation of the material. Some of the common characterization techniques are scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Raman spectroscopy. These techniques can provide information about the shape, size, structure, composition, and crystallographic orientation of the material.
I have found some web search results that might be useful for your literature review. They are:
- The Synthesis, Structure, Morphology Characterizations and Evolution Mechanisms of Nanosized Titanium Carbides and Their Further Applications: This paper reviews and analyzes the synthesis methods and mechanisms, corresponding growth morphologies of titanium carbides and their further applications according to their different morphological dimensions, including one-dimensional nanostructures, two-dimensional nanosheets and three-dimensional nanoparticles.
- Characterization techniques for nanoparticles: comparison and complementarity upon studying nanoparticle properties: This paper summarizes the present knowledge on the use, advances, advantages and weaknesses of a large number of experimental techniques that are available for the characterization of nanoparticles, including their morphology and orientation.
- Computational synthesis of 2D materials grown by chemical vapor deposition: This paper presents a computational model that considers the effect of orientation-dependent edge energies, deposition rate, edge diffusion, and temperature on the growth morphology of the synthesized monolayer materials.
- Morphology regulation of metal–organic framework-derived nanostructures for efficient oxygen evolution reaction: This paper reports a series of accurately morphology-regulated electrocatalysts (including nanosheets, nanoflowers, nanotubes and aggregations) derived from metal–organic frameworks (MOFs) for efficient oxygen evolution reaction.
I hope this helps you with your literature review.
3 Recommendations
All Answers (4)
Baylor University
Dear friend Sabin Aryal
Certainly, my curious friend Sabin Aryal! Let's delve into the realm of synthesized composite materials and their intriguing relationship with morphology and orientation.
The morphology of synthesized materials plays a crucial role in determining their properties, including their orientation. Here are a few ways in which morphology can impact orientation:
1. **Crystallinity and Grain Boundaries:**
- **Positive Impact:** Well-defined crystal structures and ordered morphologies often lead to positive orientation. For instance, in materials with aligned crystalline structures, the orientation of the material may follow the crystallographic axes.
- **Negative Impact:** On the flip side, the presence of grain boundaries or defects in the morphology can disrupt the alignment and lead to a more random or isotropic orientation.
2. **Fiber-Like Structures:**
- **Positive Impact:** Materials with fiber-like structures, such as nanotubes or nanowires, can promote positive orientation. The elongated shape encourages alignment along a particular axis.
- **Negative Impact:** Irregularities or variations in the fiber morphology might hinder perfect alignment.
3. **Porosity and Surface Area:**
- **Positive Impact:** Higher surface area resulting from a porous morphology can facilitate better interactions and interfaces, leading to positive orientation.
- **Negative Impact:** Excessive porosity or irregular pores might disrupt the continuity of the material, influencing orientation negatively.
4. **Polymer Composite Morphology:**
- **Positive Impact:** In polymer composites, a well-dispersed and aligned filler material within the polymer matrix can positively influence the overall orientation of the composite.
- **Negative Impact:** Agglomeration or uneven dispersion can lead to a less ordered orientation.
5. **Hierarchical Structures:**
- **Positive Impact:** Hierarchical structures with organized features at multiple scales can lead to unique orientations that are beneficial for specific applications.
- **Negative Impact:** Complexity in hierarchical structures might introduce challenges in controlling and predicting orientation.
Understanding these relationships often involves a combination of experimental observations, theoretical models, and simulations. The key is to tailor the morphology to achieve the desired orientation for a particular application or property.
Remember, the intricacies of material science are vast, and the optimal morphology for a given purpose can be highly context-dependent.
2 Recommendations
Tribhuvan University (Amrit Campus)
Respected Sir, Kaushik Shandilya
Thank you for your response to my inquiry. Your insights have been invaluable to me. I am interested in exploring some relevant literatures to further enhance my understanding. Any assistance in this regard would be greatly appreciated. Thank you!
Sincerely,
Sabin Aryal
Kaziranga University
The morphology of synthesized materials refers to the shape, size, and structure of the nanoscale or microscale particles or crystals that make up the material. The orientation of the material refers to the alignment or arrangement of the particles or crystals along a certain direction or plane. The morphology and orientation of the material can affect its physical, chemical, optical, and electrical properties, such as surface area, porosity, stability, reactivity, conductivity, and band gap.
The relationship between the morphology and orientation of the material is complex and depends on various factors, such as the synthesis method, the precursor materials, the temperature, the pressure, the solvent, the additives, the catalysts, and the post-synthesis treatments. These factors can influence the nucleation, growth, and aggregation of the particles or crystals, as well as their interaction with the substrate or the surrounding environment. Different synthesis methods, such as chemical vapor deposition, sol-gel, hydrothermal, and microwave, can produce different morphologies and orientations of the material, such as nanowires, nanotubes, nanosheets, nanoflowers, and nanospheres.
To understand the impact of the morphology of synthesized materials on the orientation of the materials, you need to study the mechanisms and kinetics of the synthesis process, as well as the characterization techniques that can reveal the morphology and orientation of the material. Some of the common characterization techniques are scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Raman spectroscopy. These techniques can provide information about the shape, size, structure, composition, and crystallographic orientation of the material.
I have found some web search results that might be useful for your literature review. They are:
- The Synthesis, Structure, Morphology Characterizations and Evolution Mechanisms of Nanosized Titanium Carbides and Their Further Applications: This paper reviews and analyzes the synthesis methods and mechanisms, corresponding growth morphologies of titanium carbides and their further applications according to their different morphological dimensions, including one-dimensional nanostructures, two-dimensional nanosheets and three-dimensional nanoparticles.
- Characterization techniques for nanoparticles: comparison and complementarity upon studying nanoparticle properties: This paper summarizes the present knowledge on the use, advances, advantages and weaknesses of a large number of experimental techniques that are available for the characterization of nanoparticles, including their morphology and orientation.
- Computational synthesis of 2D materials grown by chemical vapor deposition: This paper presents a computational model that considers the effect of orientation-dependent edge energies, deposition rate, edge diffusion, and temperature on the growth morphology of the synthesized monolayer materials.
- Morphology regulation of metal–organic framework-derived nanostructures for efficient oxygen evolution reaction: This paper reports a series of accurately morphology-regulated electrocatalysts (including nanosheets, nanoflowers, nanotubes and aggregations) derived from metal–organic frameworks (MOFs) for efficient oxygen evolution reaction.
I hope this helps you with your literature review.
3 Recommendations
Tribhuvan University (Amrit Campus)
Thank You so much Pranjit Sarkar . Its really helpful.
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